RU2705313C1 - Drill coulter with scraper bar - Google Patents

Abstract

FIELD: agriculture; machine building.

SUBSTANCE: invention relates to agricultural machine building, in particular, to drill coulters of sowing drills for sowing of seeds of agricultural crops. Drill coulter for sowing of small-seeded crops includes a nosepiece to which cheeks are welded, an axis on which a scraper bar is hingedly fixed, and a receiving funnel connected to a seed pipe. Receiving funnel, which also functions as a seed distributor, has a curvilinear surface made as brachistochrone with guide grooves of curved shape in cross section.

EFFECT: invention is aimed at increasing crop capacity of the cultivated crop, as well as improving uniformity of seeds distribution over the width of the compacted furrow bottom.

1 cl, 2 dwg

Description

The invention relates to agricultural machinery, in particular to the openers of seeders for sowing seeds of agricultural crops.

A known opener of the seeder (see RU No. 2086089, IPC A01C 7/20). It consists of a narralik, on the back wall of which a seed guide is fixed, and a two-shouldered L-shaped lever connected with the hinge's narral. A shield is fixed on the lever arm and an ice rink is mounted by means of the axis. A load is secured to the second lever arm.

The disadvantage of this device (opener) is that the compaction of the bed of the sowing furrow occurs after feeding the seeds, as a result of which the seeds are unevenly distributed in depth.

Known opener for subsoil scattering seeding of seeds (see RU No. 2562535 IPC АСС 7/20).

The disadvantage of this device is that it does not provide uniform compaction of the furrow bed for seeds.

Known opener with a roller bed forging seeds for sowing small-seeded crops (see RU No. 2651272 IPC A01C 7/20).

The disadvantage of this coulter is that the seeds that are fed along the vas deferens to the bottom of the compacted furrow by the bed forger will be unevenly distributed across the width.

Closest to the technical nature of the claimed device is the opener selected as a prototype (see RU No. 181338 IPC А01С 7/20), consisting of a housing including a mouthpiece to which cheeks are welded, in which an axis is fixed on which the seed bed forger with a curved working shaft is articulated surface, the seed bed is spring-loaded with the possibility of adjusting the pressure force on the soil to be sealed with a wing nut, and the seed tube is attached to the tail of the coulter with clamps.

The disadvantage of this coulter is that the seeds that are fed along the vas deferens to the bottom of the compacted furrow by the bed forger will be unevenly distributed across the width.

The present invention is aimed at increasing the productivity of cultivated crops; uniform distribution of seeds along the compacted bottom of the furrow for sowing small-seeded crops.

The problem is solved in that a receiving funnel is installed in the rear part of the opener body having a curved surface made along a brachistochrone with curved guiding grooves in cross section, thereby improving the uniform distribution of seeds along the bottom of the compacted furrow.

The invention is illustrated in FIG. 1, 2. In FIG. 1 shows the opener side view; in FIG. 2 - receiving funnel with seed distributor.

The coulter with a bed-forming device contains a mouthpiece 1, to which the cheeks 2 are welded, an axis 3 on which the bed-forming machine 4 is pivotally mounted, a receiving funnel 5 also serving as a seed distributor, having a curved surface made along a brachistochron with guiding grooves of a curved shape in cross section connected to the seed tube 6.

The opener with a bed forger is as follows.

When the drill moves, the coulter (Fig. 1), mounted on the sowing section, is buried in the soil and at the same time shifts the dry soil layer in both directions and opens a furrow (bed) in the wet layer. Under the action of the loading spring, the bed forger 4 uniformly seals the bottom of the seed furrow. Seeds entering the vas deferens 6 into the receiving funnel 5, roll along the guide grooves and are evenly distributed in the compacted groove.

As a result of the described, a high degree of uniformity of the distribution of seeds along the bottom of the compacted sowing furrow is achieved, as a result of which the seed germination uniformity is improved and, as a result, the yield of the cultivated crop is increased by 5 ... 10%.

Claims (1)

A coulter with a bed-forming machine, including a nalik with welded cheeks, in which an axis is mounted on which a bed-forming machine with a curved working surface is hinged, and a seed tube, characterized in that a receiving funnel is installed in the tail part of the coulter, which also acts as a seed distributor having a curved surface made according to brachistochrone with guiding grooves of curvilinear shape in cross section.

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